[PATCH] D75014: [InstrEmitter, SystemZ] Copy Access registers with the correct register class.

[Ulrich Weigand via Phabricator via llvm-commits]

uweigand added a comment.

> It seems safest to build the target instructions compared to just constrain the virtual register class of the register of the COPY.

I'm not sure I understand this: can you explain what problem you see with constraining the register class?

Also, if you do directly emit the EAR etc., I'm wondering why you still keep the COPY in as well?


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https://reviews.llvm.org/D75014